Underwater robot



FIG. 1 is a perspective view of an underwater robot showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left view thereof;

FIG. 5 is a right view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines are for the purpose of illustrating portions of the article that form no part of the claim. 

CLAIM The ornamental design for an underwater robot, as shown. 